V-sign
/ˈviːsaɪn/noun
1
- Brit. a sign resembling the letter V made with the first two fingers pointing up and the back of the hand facing outwards, used as a gesture of abuse or contempt〈英〉（手背朝外的）V字手势, 下流（轻蔑）手势。
2
- a similar sign made with the palm of the hand facing outwards, used as a symbol or gesture of victory（手心向外的）V字手势, 胜利手势。